Solubility in the system Na2Cr2O7+2NH4Cl⇆ (NH4)2Cr2O7+2NaCl-H2O

被引：0

作者：

Vasyanin, A. N. ^{[1
]}

Kudryashova, O. S. ^{[1
]}

Kudryashov, S. F. ^{[1
]}

Filippova, L. P. ^{[1
]}

机构：

[1] Fed State Sci Inst Nat Sci Inst, Perm, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2006年 / 51卷 / 01期

关键词：

Experimental Data; Ammonium; Potassium; Inorganic Chemistry; Dichromate;

D O I：

10.1134/S0036023606010219

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The solubility in the water-salt quaternary reciprocal system Na2Cr2O7 + 2NH(4)Cl reversible arrow (NH4)(2)Cr2O7 + 2NaCl-H2O has been investigated for the first time at 25, 50, and 75 degrees C. Using a formal analytical model, the boundaries of the phase fields have been determined, and the univariant lines and invariant points have been calculated. The experimental data have been used to calculate the temperature and concentration parameters of the circular isohydric process of potassium dichromate preparation with the participation of ammonium salts as intermediates.

引用

页码：131 / 142

页数：12